Radiator construction.



J. S. CHlMERA.

RADIATOR CONSTRUCTION.

MPUCAHOR mm suLY 24.1915.

Patented July 4, 1916.

J. S. C HIM E R H 6 than:

UNITED STATES PATENT OFFICE.

JOSEPH S. CHIMERA, OF BUFFALO, NEW YORK.

RADIATOR CONSTRUCTION.

Specification of Letters Patent.

Patented July 4, 1916.

Application filed July 24, 1915. Serial No. 41,761.

To all whom it may concern Be it known that I, Josuru S. CHIMERA, a citizen of the United States, reslding at -Butfalo, in the county of. Erie and State The invention has for a more particular object. to provide a radiator corehaiving a lm-iltiplicity of intercon'mnmicatingair pas sages, said core being so constructed as to provide a plurality of water passages between adjacent tiers of: the air passages.

The invention hasfor one of its detail objects to provide a core for radiators made up'of a plurality of units, cachoflt-he units being formed from a single sheet of metal baring spaced plaits formed therein to constitute opposed walls of the air passages when the units are assembled in the complete structure, the alternate division walls between the tiers of the air passages bein cutaway so that the adjacent passages are in communication with each other, thus reducing the quantity of metal used as well asithe weight of the radiator structure.

I lVit-h the above and other objects in view, my invention consists in the novel features .of construction, combination and arrangement of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing, in which,

Figured is an end elevation of my improycdfradiator core partly in section; Fig. 2 is a section taken on the line 22 of Fig. lj Fig. 3 is a section taken on the line 3-3 of Fig. 2; and Fig. t is a perspective view of one of the units of the radiator core.

Tn the .c'onstruction of the ordinary radiator now commonly employed in motor vehicles, for the purpose of cooling the water which; is maintained in constant circulation through the jackets of the engine cylinders, the core of the radiator consisting of a multiplicity of air passages, is constructed in units, and these units may be produced in the form of several blocks to be suitably secured together, or as a single continuous core. these radiator cores has been quite'high,"an

in view of the fact that the units constituting the core are each produced from a continuous metal plate, the weight of the core structure is also relatively great. It is the principal aim of my invention to reduce-the quantity of metal used in the construction of the core to a minimum, and thereby. lessen the weight without materially de-. creasing the capability of the core structure to resist lateral pressing strains, while; at the same time, the reduction in the temperatnre of the water as it passesthrough the passages of the core, 1s more effectively, ac-

complished.

lVith the above ends in view, the core or honeycomb of .the radiator is constructed of Heretofore, the cost of constructingv a. multiplicity of units, certain of which are designated in the accompanying drawing by the numeral 5, and others by the numeral 6. These units of the core structure differ in one very material aspect which will later be. referred to; butthey havethis feature in common, namely, that each s formed from a single continuous sheet of .metal. This metal sheetfrom which the core units 5 are formed, is placed ina suitable machine for the purpose of bending. the same to form the spaced longitudinally extending plaits therein, the opposed walls of which are in intimate contact. The longitudinal edges of the metal sheets 5 and (3 are provided with tongues for interlocking engagement when the several units of the core structure are assembled, as shown at 10. In the construction of the radiator core, the units thereof are arranged in tiers, as clearly shown in- Fig. l of the drawing. The units 5 and (S are arranged in pairs with the plaits on the respective units in each pair projecting'in relatively opposite directions and the plaits of one unit lying in a plane intermediate of the plane of the contiguous plaits of the adjacent unit. The units ('1, when assembled loo ford communication between adjacent longitudinal air passages 13 of the core. Thus, the air passing through the passages 13 cools the walls of the metal sheets 5 and plaits 7 which, in turn, reduces the temperature of the water in its passage through the radiator core. l

' When the several units of the core structure have been assembled in the manner above referred to, the ends of the assembled units are dipped into molten lead which solidifies and immovably holds or Welds the several units of the core struct re together. By cutting out the body portions of the metal sheets 6, it will be manifest that the weight of the core structure as a whole, is materially reduced, and the provision of the open plaits 7 extending substantially the entire length of the core, affords a maxi mum cooling surface over which the water is conducted from one end of the radiator to the other. The plaits 9 of the units 6 afford a spacing means between the units 5 and 6 and also effectively brace the narrow metal strips constituting the units 6 from the-imperforate walls of the units 5. Thus, while I materially reduce the quantity of metal employed in the construction of the core, the structure is, nevertheless,

very strong and substantial and capable of withstanding severe stresses. 7

It will, of course, be understood that the honeycomb or core. for the radiator above referred to, is suitably arranged within a main frame or casing which is provided with a feeding chamber to which the supply pipe of the water cooling system is connected.

As above stated, the honeycomb or core of the radiator may be constructed as above described, either in one continuous body or may be made up of a number of sections or blocks suitably secured together with the fluid passages in alinement with each other.

The invention is also susceptible of many modifications in the detail structural features above referred to and I, therefore, reserve the privilege of adopting all such legitimate changes as may be fairly embodied within the spirit and scope of the invention as claimed.

Having thus fully described my invention, what I desire to claim and secure by Letters Patent is 1- 1. A radiator core embodying sheet metal units ear-h having a series of spaced, laterally projecting open plaits formed theretions, each pair of units thereby providing,

a water passage having spaced horizontal branches, and additional skeletonic units arranged between said spaced pairs of first named units and also provided with laterally projecting plaits respectively engaging the opposed metal sheets of said first named units and dividing the space between the same into a plurality of intercommunicating air passages.

2. A radiator core embodying a multiplicity of units each formed from a sheet of metal having spaced longitudinally extending plaits formed therein, the metal sheets of certain of the units having their body portions cut out, the latter units and the imperforate units being arranged in pairs with their plaits extending in opposite i directions and engaging the adjacent metal sheets intermediate of the plaits thereon whereby a multiplicity of air passages are formed with the adjacent passages in communication with each other.

3. A radiator core embodying a plurality of units each formed from a metal sheet bent to provide a plurality of spaced longitudinally extending plaits therein, said units being arranged 1n pairs with the plaits thereon alternately disposed and extending in opposite directions, the metal sheets of alternate pairs of units and the plaits thereon having their intermediate portions cut out, the plaits of one unit bearing against the metal sheet of an adjacent unit, said plaits forming a multiplicity of air passages arranged in tiers, the adjacent tiers of passages communicating with each other, the imperforate metal sheets of the alternate pairs of units being spaced apart to provide water passages between the walls thereof.

4. A radiator core consisting of a plurality of spaced pairs of sheet metal units, the metal sheets in each pair being spaced apart and each having a plurality of laterally projecting open plaits therein to provide water passages, the plaits on the opposed units in adjacent pairs being disposed in staggered relation with respect to each other, and vertically disposed metal strips arranged between the spaced pairs of units at each end thereof and contacting with the plaits on the opposed metal sheets, said vertical strips having lateral projections in line with the plaits of one metal sheet and in contact with the opposed metal sheet between the plaits thereof.

5. A radiator core consisting of a plurality of spaced pairs of sheet metal units each having spaced, laterally extending open plaits therein to provide water passages, and an additional pair of sheet metal units arranged between the adjacent pairs of first named units and provided with oppositely extending plaits having their opposed walls in intimate contact throughouttheir length, said plaits bearing against the opposed first named units.

6. A radiator core embodying sheet metal units each having spaced laterally extending open plaits formed therein, said units being adapted to be arranged in pairs in spaced relation to each other with the plaits thereon alternately arranged and projecting in opposite directions to form vertical fluid passages in the core having horizontally disposed branches, and additional sheet metal units having their body portions cut away to produce narrow sheet metal strips each having a series of closed plaits formed therein, said latter units being also adapted to be arranged in airs in close contact with each other and with the plaits thereon extending in relatively opposite 'lirections and disposed between the laits on the first named units and contactlng with the walls of the fluid passages.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

JOSEPH S. CHIMERA.

WVitnesses:

JOSEPH (J. CHIMEKA, CHARLES PIAzzA'r'ro. 

